Things to hate about HN: the large number of nearly-nothing responses like this. I wish people would instead suggest something constructive like 'make some vids and put them on youtube so we can judge for ourselves'.
A good test is to apply a white mark on the subjects head. Try to do it in a way they don't notice, and use a safe material with no odor. Then see if they start mucking with their head after looking in the mirror.
Agreed. If an HN poster doesn't start cleaning their hair after looking in a mirror, their account should be cancelled to prevent further posting. That would work.
That would imply I can believe his very extraordinary claims. No dogs have ever passed the mirror test, this would be a momentous occasion for science.
(NB, I don't know where I saw it but if you look at <https://en.wikipedia.org/wiki/Mirror_test#Mammals_3> about pigs: "Pigs can use visual information seen in a mirror to find food" - someone recently found dogs doing the same; finding hidden food with mirrors with distinctly better than chance).
